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Fwd: Per user SPF policies - Question Re problems where mail users can not send through my mailserver

2004-12-13 19:28:00
Meng,

How goes pobox.com's experiment with per user SPF policies?

Scott Kitterman

...... Forwarded Message .......
From: "peter(_at_)iib(_dot_)ws" <peter(_at_)iib(_dot_)ws>
To: <spf-help(_at_)v2(_dot_)listbox(_dot_)com>
Date: Tue, 14 Dec 2004 01:15:11 +0000
Subj: [spf-help] Question Re problems where mail  users can not send 
through my mailserver

Hi there
This is the problem:
I have 2000+ users from all over the world who connect to the net using 
their preferred ISP
Most are OK but a fair number are using ISP's that block port 25 traffic so 
SPF can not work in a
normal fashion as all these affected users are sending from their ISP's 
mailserver - I have heard
that there are problems in china if you use non standard ports - is this 
true??
Would it help to open up another port for mail for these users and if so 
which one would you
reccomend then i can replace the SPF record which was originally set until 
we came up against this
problem

Thanks for any help/suggestions

Regards
Peter

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